Science & Technology News.

[Stardust]

Finally there's something science related. I will surely put up some of my great experiments and some really cool stuff that people can do in their daily lives to have some fun and show off their coolness to people.

Experiment 1:
Sulphur Hexaflouride Tank





It it is all about Archimedes' principle.

 

[Stardust]

Finally there's something science related. I will surely put up some of my great experiments and some really cool stuff that people can do in their daily lives to have some fun and show off their coolness to people.

Experiment 1:
Sulphur Hexaflouride Tank

This is the easiest experiment.

Things required:
a clear glass tank or vessel
SF6 gas

Procedure:
Get some SF6 gas. It is a very heavy gas that has density five times higher than air. Not only is it heavier than air but even solid objects, this is what makes it interesting.
Pour the gas in the clear glass tank. Fill it half.
Now cover the tank for some time. Let the gas settle properly and let it get to rest.
Now you can throw in a paper boat or a plastic ball or any paper object and you'll see that the gas is so heavy that these objects start to float on it. The gas is colorless and invisible to eyes. It look like the objects are floating in air.

Cheap antigravity trick for you.


Will post some great articles soon. Try the above till then. Here's a video to give you an idea what it will be like.

It it is all about Archimedes' principle.

 

[maartinn456]

Hi Friends, Graphics cards are impressive pieces of hardware. Some types of games demand more of a graphics card. If you're running on a PC with a Celeron or Athlon II CPU, you can get some extra graphics oomph by upgrading to a better graphics card, but the improvement will be limited. Let's take a look at what one of the latest card.

 

[Audio]

21 June 2013
ESA’s experimental reentry vehicle passed its milestone descent and landing test on Wednesday at the Poligono Interforze Salto di Quirra off the east coast of Sardinia in Italy.

The full-scale Intermediate eXperimental Vehicle (IXV) prototype was released from an altitude of 3000 m by a helicopter, falling to gain speed to mimic a space mission before parachute deployment. The parachute slowed IXV for a safe splashdown in the sea at a speed below 7 m/s.

This last step in a series of tests shows that IXV can be recovered safely after its mission into space.

Safe splashdown for Intermediate eXperimental Vehicle / Launchers / Our Activities / ESA

An anomaly in inflating the balloons will be investigated.

^^ This is ESA speak for fail. They call it anomaly.

 

[Audio]

(Phys.org) —NASA and Aerojet Rocketdyne of West Palm Beach, Fla., recently finished testing a rocket engine injector made through additive manufacturing, or 3-D printing.
This type of injector manufactured with traditional processes would take more than a year to make but with these new processes it can be produced in less than four months, with a 70 percent reduction in cost.
"Rocket engine components are complex machined pieces that require significant labor and time to produce. The injector is one of the most expensive components of an engine," said Tyler Hickman, who led the testing at Glenn.

Read more at: NASA, industry test additively manufactured rocket engine injector

 

[Audio]

The general director of one of Russia's largest shipbuilders, Aleksandr Voznesensky, has announced to reporters that a floating nuclear power plant is currently under construction at one of Russia's ship yards. He added that it will likely be ready for use by 2016. The Russians are calling it a "floating power" station, abbreviated to PEB. The vessel has been given the name Akademik Lomonosov.
The advantages of a floating nuclear power station are obvious—electrical power could be brought to areas that are not currently being served by other means. Russia in particular has many far-flung outposts in its eastern region that have had difficulty flourishing due to the financial constraints of building power plants so far away from everything else.
The Akademik Lomonosov will have two KLT-40 naval propulsion reactors modified to serve as power providers for an external location—with a displacement of 21,500 tons. Lomonosov noted that nuclear powered marine vessels have a proven safety record going back 50 years.

Read more at:Russians to deploy floating nuclear power plant

 

[Audio]

An anomaly in inflating the balloons will be investigated.

^^ This is ESA speak for fail. They call it anomaly.

Small update and video at link:

Review found that parachutes provided such a gentle landing that the inflators never detected the splashdown.

Floatation balloons fail to deployon new spacecraft test

 

[hamza321]

hmm nice and helpful but from where could we get this gas from

 

[hamza321]

hmm that is great

 

[Audio]

The UK government has announced plans to invest in the development of an air-breathing rocket engine – intended for a single-stage-to-orbit spaceplane – following the ESA-managed feasibility testing of essential technology.

The £60 million investment, provided through the UK Space Agency, will back technical improvements leading to construction of a prototype Synergistic Air-Breathing Rocket Engine, or SABRE.

Designed by UK company Reaction Engines Ltd, this unique engine will use atmospheric air in the early part of the flight before switching to rocket mode for the final ascent to orbit.

The concept paves the way for true spaceplanes – lighter, reusable and able to fly from conventional runways.

ESA test opens way to UK spaceplane engine investment / Technology / Our Activities / ESA

Small update:

Flight tests of an engine for the giant space plane Skylon are expected by 2020.

The British government and European Space Agency (ESA) are providing $100 million in funding, which will be matched by private financing to complete the propulsion system's development and test.

Two Synergetic Air-Breathing Rocket Engines (SABRE) will power the Skylon space plane — a privately funded, single-stage-to-orbit concept vehicle that is 276 feet (84 meters) long. At take-off, the plane will weigh about 303 tons (275,000 kilograms).

Read more at: http://www.space.com/22004-skylon-space-plane-rocket-engine.html#sthash.Cpev0hBQ.dpuf

 

[neolithic]

Outrageous fanboy claims – Apple pioneered personal network

 

[Audio]

Earth from 1.4 billion km away (Saturn orbit )...open in new tab for hi res

 

[Audio]

Today’s 70th flight of Arianespace’s heavy-lift launcher orbited Europe’s largest ever telecommunications satellite, Alphasat, and India’s latest meteorological spacecraft, INSAT-3D, on the third Ariane 5 mission of 2013.
The workhorse vehicle lifted off exactly on schedule at 4:54 p.m. local time from the Spaceport’s ELA-3 launch zone in French Guiana for a nearly 33-minute flight, which marked the launcher’s 56th consecutive successful mission.
Ariane 5 delivered a total lift performance of 9,760 kg., which included a combined total of some 8,770 kg. for the mission’s two passengers, in addition to the SYLDA dispenser system and hardware in Arianespace’s dual-payload stack.

More at http://www.arianespace.com/news-mission-update/2013/1075.asp

Open in new tab for hi res (2400x3300)

 

[neolithic]

BBC News - Bare bones Raspberry Pi PC gets ready to launch

Raspberry Pi, world's cheapest computer, goes past 1.5 mln units sales

 

[neolithic]

The futuristic vertical farms that could solve Hong Kong's space shortage